package single;

public class test{
    public static void main(String[] args) {

        //懒汉式测试
        Student student = Student.get();
        System.out.println(student.toString());
        //饿汉式测试
//        People people = People.get();
//        System.out.println(people.toString());

        System.out.println(People.a);

    }
    
}
